Vertical Blanks - Fuji Xerox DocuPrint M355df Service Manual

Chapter 3 Image Quality Troubleshooting
3.2 Image Quality Troubleshooting
IQ-8

Vertical blanks

Step
Checking the error mode.
1
Does the error occur only during copying?
Checking the original.
2
Is the original color clean?
Checking the platen glass and DADF Feed Roller.
3
Are there any damages or foreign substance?
Checking the Print.
Print the [Pitch Chart] in [Chart] in [Maintenance] of [Admin
Menu].
4 When the partial lacks of periodicity are observed, check the
defective parts by comparing the printed partial lacks with the
Pitch Chart.
Are there any partial lacks matching the chart?
Checking the paper.
5 Is the installed paper with a new and dry one? Or does the
paper satisfy the specification?
Clean inside the printer by using the cleaning rod. (Cleaning
the Raster Optical Scanner (ROS) Window.)
6 After the cleaning is completed, print the [Pitch Chart] in
[Chart] in [Maintenance] of [Admin Menu].
Is the image printed correctly?
Possible causative parts
- IIT ASSY (PL21.1.14)
- DADF ASSY (PL21.1.1)
- Transfer Unit [ROLL ASSY-TRANS CRU] (PL6.1.1)
- Drum Cartridge [XERO ASSY] (PL8.1.1)
- FUSING UNIT (PL7.1.1)
- ROS ASSY (PL2.1.1)
Check and Action
3-20
Yes
Go to step 2. Go to step 4.
End, change the
Go to step 3.
original.
Remove the for-
eign substances
or Clean up the
IIT/DADF. If
platen glass has
Go to step 4.
been damaged,
Replace the IIT
ASSY (REP
21.1). Then go to
step 4.
Printing data is
incorrect, then
check the print-
ing data which Go to step 5.
the problem gen-
erated.
End of work.
Replace the
paper with a new
and dry one. Or
change the
Go to step 6. paper to the one
that satisfies the
specification.
Then go to step
6.
End of work. Go to step 7.
No